Memory Sparing - IBM System x3400 M3 Types 7378 Installation And User Manual

10. Insert the DIMM into the connector by aligning the edges of the DIMM with the
11. Reinstall the air baffle (see "Installing the air baffle" on page 53 for more
12. Reinstall the power-supply cage.
13. Reinstall the left-side cover (see "Completing the installation" on page 98).
14. Reinstall the power supplies.
15. Reconnect the power cords and external cables.
If you have other devices to install or remove, do so now. Otherwise, go to
"Completing the installation" on page 98.

Memory sparing

The server supports memory sparing. This feature disables the failed memory from
the system configuration and activates a DIMM to replace the failed active DIMM.
You can enable either memory sparing or memory mirroring in the Setup utility (see
"Using the Setup utility" on page 102). When you use the memory sparing feature,
consider the following information:
v The memory sparing feature is supported on server models with an Intel Xeon
v When you enable the memory sparing feature, you must install three DIMMs per
5. Pull up the power-supply cage handle, and then swing the power-supply cage
out of the server (see "Opening the power-supply cage" on page 55 for more
information).
6. Remove the air baffle from the server (see "Removing the air baffle" on page
52 for more information).
7. Open the retaining clip on each end of the DIMM connector.
Attention: To avoid breaking the DIMM retaining clips or damaging the
DIMM connectors, open and close the clips gently.
8. Touch the static-protective package that contains the DIMM to any unpainted
metal surface on the outside of the server. Then, remove the DIMM from the
package.
9. Turn the DIMM so that the DIMM keys align correctly with the connector.
slots at the ends of the DIMM connector. Firmly press the DIMM straight down
into the connector by applying pressure on both ends of the DIMM
simultaneously. The retaining clips snap into the locked position when the
DIMM is firmly seated in the connector. If there is a gap between the DIMM
and the retaining clips, the DIMM has not been correctly inserted; open the
retaining clips, remove the DIMM, and then reinsert it.
information).
5600 series microprocessor.
microprocessor at a time. The first DIMM must be in channel 0, the second
Chapter 2. Installing optional devices
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